This computer is running an unsupported version of Exchange server
Windows Small Business Server 2003 Setup cannot continue because Exchange Server 5.5 or earlier prevents Exchange Server 2003 from being installed. Windows Small Business Server 2003 includes Exchange Server 2003.
You must remove the currently installed version of Exchange, and then restart Setup.
|When you remove Exchange, all mailboxes are deleted. It is recommended that you use Exmerge to export all of your mailboxes to .pst files. You should then verify that the .pst file is valid. After Exchange Server 2003 is installed by Setup, you can then use Exmerge to import your .pst files. Additionally, if you have public folders that you want to migrate, you must use Outlook messaging to save them to a .pst while logged on as an account with administrator permissions.|
Click Start, click Run, and then type Control.
Double-click Add/Remove Programs.
Next to Microsoft Exchange Server, click Change/Remove, and then follow the instructions for removing Exchange server.
Restart your computer.
|For more information about removing Exchange Server 5.5, search for article 259158 in the Microsoft Knowledge Base at the Microsoft Web site (http://go.microsoft.com/fwlink/?LinkId=4441).|